ancillae. 1  nominative plural of. 2  genitive singular of. 3  dative singular of.  vocative plural of.
Acceleration is the time rate of change of velocity. If velocity is constant, then. acceleration is zero. Note: 100 km per h for 10 seconds is a constant speed, but not necessarily a constant. velocity, since we're told nothing about the direction.
The gas pedal (more properly called the accelerator) can sometimes begin to stick on a car, causing the engine to run fast or the pedal to stay down even after you've moved your foot from it.